int GetCrashSignalFD(const base::CommandLine& command_line) {
  if (crash_reporter::IsCrashpadEnabled()) {
    int fd;
    pid_t pid;
    return crash_reporter::GetHandlerSocket(&fd, &pid) ? fd : -1;
  }

  // Extensions have the same process type as renderers.
  if (command_line.HasSwitch(extensions::switches::kExtensionProcess)) {
    static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
    if (!crash_handler)
      crash_handler = CreateCrashHandlerHost("extension");
    return crash_handler->GetDeathSignalSocket();
  }

  std::string process_type =
      command_line.GetSwitchValueASCII(::switches::kProcessType);

  if (process_type == ::switches::kRendererProcess) {
    static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
    if (!crash_handler)
      crash_handler = CreateCrashHandlerHost(process_type);
    return crash_handler->GetDeathSignalSocket();
  }

  if (process_type == ::switches::kPpapiPluginProcess) {
    static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
    if (!crash_handler)
      crash_handler = CreateCrashHandlerHost(process_type);
    return crash_handler->GetDeathSignalSocket();
  }

  if (process_type == ::switches::kGpuProcess) {
    static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
    if (!crash_handler)
      crash_handler = CreateCrashHandlerHost(process_type);
    return crash_handler->GetDeathSignalSocket();
  }

  if (process_type == ::switches::kUtilityProcess) {
    static breakpad::CrashHandlerHostLinux* crash_handler = nullptr;
    if (!crash_handler)
      crash_handler = CreateCrashHandlerHost(process_type);
    return crash_handler->GetDeathSignalSocket();
  }

  return -1;
}


bool WebContents::IsLoading() const {
  return web_contents()->IsLoading();
}


void WebContents::BeforeUnloadFired(bool proceed,
                                    const base::TimeTicks& proceed_time) {
  // Do nothing, we override this method just to avoid compilation error since
  // there are two virtual functions named BeforeUnloadFired.
}


gfx::Size WebContents::GetSizeForNewRenderView(content::WebContents* wc) {
  if (IsOffScreen() && wc == web_contents()) {
    auto* relay = NativeWindowRelay::FromWebContents(web_contents());
    if (relay) {
      auto* owner_window = relay->GetNativeWindow();
      return owner_window ? owner_window->GetSize() : gfx::Size();
    }
  }

  return gfx::Size();
}


ElectronBrowserClient::GetPluginMimeTypesWithExternalHandlers(
    content::BrowserContext* browser_context) {
  base::flat_set<std::string> mime_types;
#if BUILDFLAG(ENABLE_PLUGINS) && BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  auto map = PluginUtils::GetMimeTypeToExtensionIdMap(browser_context);
  for (const auto& pair : map)
    mime_types.insert(pair.first);
#endif
  return mime_types;
}


void WebContents::UpdateTargetURL(content::WebContents* source,
                                  const GURL& url) {
  Emit("update-target-url", url);
}


bool ShouldDisableDialogs() const { return disable_dialogs_; }


void WebContents::ExitFullscreenModeForTab(content::WebContents* source) {
  if (!owner_window_)
    return;

  SetHtmlApiFullscreen(false);

  if (native_fullscreen_) {
    // Explicitly trigger a view resize, as the size is not actually changing if
    // the browser is fullscreened, too. Chrome does this indirectly from
    // `chrome/browser/ui/exclusive_access/fullscreen_controller.cc`.
    source->GetRenderViewHost()->GetWidget()->SynchronizeVisualProperties();
  }

  exclusive_access_manager_->fullscreen_controller()->ExitFullscreenModeForTab(
      source);
}


NotificationPresenter* ElectronBrowserClient::GetNotificationPresenter() {
  if (!notification_presenter_) {
    notification_presenter_.reset(NotificationPresenter::Create());
  }
  return notification_presenter_.get();
}


v8::Local<v8::Promise> WebContents::SavePage(
    const base::FilePath& full_file_path,
    const content::SavePageType& save_type) {
  v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
  gin_helper::Promise<void> promise(isolate);
  v8::Local<v8::Promise> handle = promise.GetHandle();

  if (!full_file_path.IsAbsolute()) {
    promise.RejectWithErrorMessage("Path must be absolute");
    return handle;
  }

  auto* handler = new SavePageHandler(web_contents(), std::move(promise));
  handler->Handle(full_file_path, save_type);

  return handle;
}


double WebContents::GetZoomLevel() const {
  return zoom_controller_->GetZoomLevel();
}


void ElectronWebContentsUtilityHandlerImpl::WebContentsDestroyed() {
  delete this;
}


void WebContents::Message(bool internal,
                          const std::string& channel,
                          blink::CloneableMessage arguments,
                          content::RenderFrameHost* render_frame_host) {
  TRACE_EVENT1("electron", "WebContents::Message", "channel", channel);
  // webContents.emit('-ipc-message', new Event(), internal, channel,
  // arguments);
  EmitWithSender("-ipc-message", render_frame_host,
                 electron::mojom::ElectronApiIPC::InvokeCallback(), internal,
                 channel, std::move(arguments));
}


content::WebContents* ElectronBrowserClient::GetWebContentsFromProcessID(
    int process_id) {
  // If the process is a pending process, we should use the web contents
  // for the frame host passed into RegisterPendingProcess.
  const auto iter = pending_processes_.find(process_id);
  if (iter != std::end(pending_processes_))
    return iter->second;

  // Certain render process will be created with no associated render view,
  // for example: ServiceWorker.
  return WebContentsPreferences::GetWebContentsFromProcessID(process_id);
}


void ElectronRenderFrameObserver::DidMeaningfulLayout(
    blink::WebMeaningfulLayout layout_type) {
  if (layout_type == blink::WebMeaningfulLayout::kVisuallyNonEmpty) {
    mojo::AssociatedRemote<mojom::ElectronWebContentsUtility>
        web_contents_utility_remote;
    render_frame_->GetRemoteAssociatedInterfaces()->GetInterface(
        &web_contents_utility_remote);
    web_contents_utility_remote->OnFirstNonEmptyLayout();
  }
}


bool SpellCheckWord(content::RenderFrame* render_frame,
                    const std::string& word,
                    std::vector<std::u16string>* optional_suggestions) {
  size_t start;
  size_t length;

  RendererClientBase* client = RendererClientBase::Get();

  std::u16string w = base::UTF8ToUTF16(word);
  int id = render_frame->GetRoutingID();
  return client->GetSpellCheck()->SpellCheckWord(
      w.c_str(), 0, word.size(), id, &start, &length, optional_suggestions);
}


void WebContents::ContentsZoomChange(bool zoom_in) {
  Emit("zoom-changed", zoom_in ? "in" : "out");
}


content::RenderFrameHost* ElectronApiIPCHandlerImpl::GetRenderFrameHost() {
  return content::RenderFrameHost::FromID(render_process_id_, render_frame_id_);
}


FileSystem CreateFileSystemStruct(content::WebContents* web_contents,
                                  const std::string& file_system_id,
                                  const std::string& file_system_path,
                                  const std::string& type) {
  const GURL origin = web_contents->GetURL().DeprecatedGetOriginAsURL();
  std::string file_system_name =
      storage::GetIsolatedFileSystemName(origin, file_system_id);
  std::string root_url = storage::GetIsolatedFileSystemRootURIString(
      origin, file_system_id, kRootName);
  return FileSystem(type, file_system_name, root_url, file_system_path);
}


  void SetIsolatedWorldInfo(v8::Isolate* isolate,
                            int world_id,
                            const gin_helper::Dictionary& options) {
    content::RenderFrame* render_frame;
    if (!MaybeGetRenderFrame(isolate, "setIsolatedWorldInfo", &render_frame))
      return;

    std::string origin_url, security_policy, name;
    options.Get("securityOrigin", &origin_url);
    options.Get("csp", &security_policy);
    options.Get("name", &name);

    if (!security_policy.empty() && origin_url.empty()) {
      gin_helper::ErrorThrower(isolate).ThrowError(
          "If csp is specified, securityOrigin should also be specified");
      return;
    }

    blink::WebIsolatedWorldInfo info;
    info.security_origin = blink::WebSecurityOrigin::CreateFromString(
        blink::WebString::FromUTF8(origin_url));
    info.content_security_policy = blink::WebString::FromUTF8(security_policy);
    info.human_readable_name = blink::WebString::FromUTF8(name);
    blink::SetIsolatedWorldInfo(world_id, info);
  }


  void SendToHost(v8::Isolate* isolate,
                  gin_helper::ErrorThrower thrower,
                  const std::string& channel,
                  v8::Local<v8::Value> arguments) {
    if (!electron_ipc_remote_) {
      thrower.ThrowError(kIPCMethodCalledAfterContextReleasedError);
      return;
    }
    blink::CloneableMessage message;
    if (!electron::SerializeV8Value(isolate, arguments, &message)) {
      return;
    }
    electron_ipc_remote_->MessageHost(channel, std::move(message));
  }


  v8::Local<v8::Value> FindFrameByName(v8::Isolate* isolate,
                                       const std::string& name) {
    content::RenderFrame* render_frame;
    if (!MaybeGetRenderFrame(isolate, "findFrameByName", &render_frame))
      return v8::Null(isolate);

    blink::WebFrame* frame = render_frame->GetWebFrame()->FindFrameByName(
        blink::WebString::FromUTF8(name));
    return CreateWebFrameRenderer(isolate, frame);
  }


bool WebContents::CheckMediaAccessPermission(
    content::RenderFrameHost* render_frame_host,
    const GURL& security_origin,
    blink::mojom::MediaStreamType type) {
  auto* web_contents =
      content::WebContents::FromRenderFrameHost(render_frame_host);
  auto* permission_helper =
      WebContentsPermissionHelper::FromWebContents(web_contents);
  return permission_helper->CheckMediaAccessPermission(security_origin, type);
}


static void oz_hcd_complete_set_config(struct oz_port *port, struct urb *urb,
		u8 rcode, u8 config_num)
{
	int rc = 0;
	struct usb_hcd *hcd = port->ozhcd->hcd;

	if (rcode == 0) {
		port->config_num = config_num;
		oz_clean_endpoints_for_config(hcd, port);
		if (oz_build_endpoints_for_config(hcd, port,
			&urb->dev->config[port->config_num-1], GFP_ATOMIC)) {
			rc = -ENOMEM;
		}
	} else {
		rc = -ENOMEM;
	}
	oz_complete_urb(hcd, urb, rc);
}


static int oz_hcd_buffer_data(struct oz_endpoint *ep, const u8 *data,
			      int data_len)
{
	int space;
	int copy_len;

	if (!ep->buffer)
		return -1;
	space = ep->out_ix-ep->in_ix-1;
	if (space < 0)
		space += ep->buffer_size;
	if (space < (data_len+1)) {
		oz_dbg(ON, "Buffer full\n");
		return -1;
	}
	ep->buffer[ep->in_ix] = (u8)data_len;
	if (++ep->in_ix == ep->buffer_size)
		ep->in_ix = 0;
	copy_len = ep->buffer_size - ep->in_ix;
	if (copy_len > data_len)
		copy_len = data_len;
	memcpy(&ep->buffer[ep->in_ix], data, copy_len);

	if (copy_len < data_len) {
		memcpy(ep->buffer, data+copy_len, data_len-copy_len);
		ep->in_ix = data_len-copy_len;
	} else {
		ep->in_ix += copy_len;
	}
	if (ep->in_ix == ep->buffer_size)
		ep->in_ix = 0;
	ep->buffered_units++;
	return 0;
}


static inline void oz_hcd_put(struct oz_hcd *ozhcd)
{
	if (ozhcd)
		usb_put_hcd(ozhcd->hcd);
}


int oz_hcd_init(void)
{
	int err;

	if (usb_disabled())
		return -ENODEV;

	oz_urb_link_cache = KMEM_CACHE(oz_urb_link, 0);
	if (!oz_urb_link_cache)
		return -ENOMEM;

	tasklet_init(&g_urb_process_tasklet, oz_urb_process_tasklet, 0);
	tasklet_init(&g_urb_cancel_tasklet, oz_urb_cancel_tasklet, 0);
	err = platform_driver_register(&g_oz_plat_drv);
	oz_dbg(ON, "platform_driver_register() returned %d\n", err);
	if (err)
		goto error;
	g_plat_dev = platform_device_alloc(OZ_PLAT_DEV_NAME, -1);
	if (g_plat_dev == NULL) {
		err = -ENOMEM;
		goto error1;
	}
	oz_dbg(ON, "platform_device_alloc() succeeded\n");
	err = platform_device_add(g_plat_dev);
	if (err)
		goto error2;
	oz_dbg(ON, "platform_device_add() succeeded\n");
	return 0;
error2:
	platform_device_put(g_plat_dev);
error1:
	platform_driver_unregister(&g_oz_plat_drv);
error:
	tasklet_disable(&g_urb_process_tasklet);
	tasklet_disable(&g_urb_cancel_tasklet);
	oz_dbg(ON, "oz_hcd_init() failed %d\n", err);
	return err;
}


static void oz_ep_free(struct oz_port *port, struct oz_endpoint *ep)
{
	if (port) {
		LIST_HEAD(list);
		struct oz_hcd *ozhcd = port->ozhcd;

		if (ep->flags & OZ_F_EP_HAVE_STREAM)
			oz_usb_stream_delete(port->hpd, ep->ep_num);
		/* Transfer URBs to the orphanage while we hold the lock. */
		spin_lock_bh(&ozhcd->hcd_lock);
		/* Note: this works even if ep->urb_list is empty.*/
		list_replace_init(&ep->urb_list, &list);
		/* Put the URBs in the orphanage. */
		list_splice_tail(&list, &ozhcd->orphanage);
		spin_unlock_bh(&ozhcd->hcd_lock);
	}
	oz_dbg(ON, "Freeing endpoint memory\n");
	kfree(ep);
}


static int oz_plat_remove(struct platform_device *dev)
{
	struct usb_hcd *hcd = platform_get_drvdata(dev);
	struct oz_hcd *ozhcd;

	if (hcd == NULL)
		return -1;
	ozhcd = oz_hcd_private(hcd);
	spin_lock_bh(&g_hcdlock);
	if (ozhcd == g_ozhcd)
		g_ozhcd = NULL;
	spin_unlock_bh(&g_hcdlock);
	oz_dbg(ON, "Clearing orphanage\n");
	oz_hcd_clear_orphanage(ozhcd, -EPIPE);
	oz_dbg(ON, "Removing hcd\n");
	usb_remove_hcd(hcd);
	usb_put_hcd(hcd);
	return 0;
}


static struct oz_urb_link *oz_uncancel_urb(struct oz_hcd *ozhcd,
		struct urb *urb)
{
	struct oz_urb_link *urbl;

	list_for_each_entry(urbl, &ozhcd->urb_cancel_list, link) {
		if (urb == urbl->urb) {
			list_del_init(&urbl->link);
			return urbl;
		}
	}
	return NULL;
}


static void oz_hcd_clear_orphanage(struct oz_hcd *ozhcd, int status)
{
	if (ozhcd) {
		struct oz_urb_link *urbl, *n;

		list_for_each_entry_safe(urbl, n, &ozhcd->orphanage, link) {
			list_del(&urbl->link);
			oz_complete_urb(ozhcd->hcd, urbl->urb, status);
			oz_free_urb_link(urbl);
		}
	}
}


static void oz_hcd_stop(struct usb_hcd *hcd)
{
}


static int oz_build_endpoints_for_interface(struct usb_hcd *hcd,
		struct oz_port *port,
		struct usb_host_interface *intf, gfp_t mem_flags)
{
	struct oz_hcd *ozhcd = port->ozhcd;
	int i;
	int if_ix = intf->desc.bInterfaceNumber;
	int request_heartbeat = 0;

	oz_dbg(ON, "interface[%d] = %p\n", if_ix, intf);
	if (if_ix >= port->num_iface || port->iface == NULL)
		return -ENOMEM;
	for (i = 0; i < intf->desc.bNumEndpoints; i++) {
		struct usb_host_endpoint *hep = &intf->endpoint[i];
		u8 ep_addr = hep->desc.bEndpointAddress;
		u8 ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
		struct oz_endpoint *ep;
		int buffer_size = 0;

		oz_dbg(ON, "%d bEndpointAddress = %x\n", i, ep_addr);
		if (ep_addr & USB_ENDPOINT_DIR_MASK) {
			switch (hep->desc.bmAttributes &
						USB_ENDPOINT_XFERTYPE_MASK) {
			case USB_ENDPOINT_XFER_ISOC:
				buffer_size = OZ_EP_BUFFER_SIZE_ISOC;
				break;
			case USB_ENDPOINT_XFER_INT:
				buffer_size = OZ_EP_BUFFER_SIZE_INT;
				break;
			}
		}

		ep = oz_ep_alloc(buffer_size, mem_flags);
		if (!ep) {
			oz_clean_endpoints_for_interface(hcd, port, if_ix);
			return -ENOMEM;
		}
		ep->attrib = hep->desc.bmAttributes;
		ep->ep_num = ep_num;
		if ((ep->attrib & USB_ENDPOINT_XFERTYPE_MASK)
			== USB_ENDPOINT_XFER_ISOC) {
			oz_dbg(ON, "wMaxPacketSize = %d\n",
			       usb_endpoint_maxp(&hep->desc));
			ep->credit_ceiling = 200;
			if (ep_addr & USB_ENDPOINT_DIR_MASK) {
				ep->flags |= OZ_F_EP_BUFFERING;
			} else {
				ep->flags |= OZ_F_EP_HAVE_STREAM;
				if (oz_usb_stream_create(port->hpd, ep_num))
					ep->flags &= ~OZ_F_EP_HAVE_STREAM;
			}
		}
		spin_lock_bh(&ozhcd->hcd_lock);
		if (ep_addr & USB_ENDPOINT_DIR_MASK) {
			port->in_ep[ep_num] = ep;
			port->iface[if_ix].ep_mask |=
				(1<<(ep_num+OZ_NB_ENDPOINTS));
			if ((ep->attrib & USB_ENDPOINT_XFERTYPE_MASK)
				 == USB_ENDPOINT_XFER_ISOC) {
				list_add_tail(&ep->link, &port->isoc_in_ep);
				request_heartbeat = 1;
			}
		} else {
			port->out_ep[ep_num] = ep;
			port->iface[if_ix].ep_mask |= (1<<ep_num);
			if ((ep->attrib & USB_ENDPOINT_XFERTYPE_MASK)
				== USB_ENDPOINT_XFER_ISOC) {
				list_add_tail(&ep->link, &port->isoc_out_ep);
				request_heartbeat = 1;
			}
		}
		spin_unlock_bh(&ozhcd->hcd_lock);
		if (request_heartbeat && port->hpd)
			oz_usb_request_heartbeat(port->hpd);
	}
	return 0;
}


static struct oz_urb_link *oz_alloc_urb_link(void)
{
	return kmem_cache_alloc(oz_urb_link_cache, GFP_ATOMIC);
}


static int oz_hcd_get_frame_number(struct usb_hcd *hcd)
{
	oz_dbg(ON, "oz_hcd_get_frame_number\n");
	return oz_usb_get_frame_number();
}


static void oz_free_urb_link(struct oz_urb_link *urbl)
{
	if (!urbl)
		return;

	kmem_cache_free(oz_urb_link_cache, urbl);
}


static int oz_hcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
{
	struct oz_hcd *ozhcd = oz_hcd_private(hcd);
	struct oz_urb_link *urbl;
	int rc;
	unsigned long irq_state;

	oz_dbg(URB, "%s: (%p)\n",  __func__, urb);
	urbl = oz_alloc_urb_link();
	if (unlikely(urbl == NULL))
		return -ENOMEM;
	spin_lock_irqsave(&g_tasklet_lock, irq_state);
	/* The following function checks the urb is still in the queue
	 * maintained by the core and that the unlinked field is zero.
	 * If both are true the function sets the unlinked field and returns
	 * zero. Otherwise it returns an error.
	 */
	rc = usb_hcd_check_unlink_urb(hcd, urb, status);
	/* We have to check we haven't completed the urb or are about
	 * to complete it. When we do we set hcpriv to 0 so if this has
	 * already happened we don't put the urb in the cancel queue.
	 */
	if ((rc == 0) && urb->hcpriv) {
		urbl->urb = urb;
		urbl->port = (struct oz_port *)urb->hcpriv;
		urbl->ep_num = usb_pipeendpoint(urb->pipe);
		if (usb_pipein(urb->pipe))
			urbl->ep_num |= USB_DIR_IN;
		list_add_tail(&urbl->link, &ozhcd->urb_cancel_list);
		spin_unlock_irqrestore(&g_tasklet_lock, irq_state);
		tasklet_schedule(&g_urb_cancel_tasklet);
	} else {
		spin_unlock_irqrestore(&g_tasklet_lock, irq_state);
		oz_free_urb_link(urbl);
	}
	return rc;
}


	RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
	{
		return ROUTE_BROADCAST;
	}


	void AnnounceState(void)
	{
		if (this->state_announced)
			return;

		switch (this->result)
		{
		 case SASL_OK:
			this->user->WriteNumeric(903, "%s :SASL authentication successful", this->user->nick.c_str());
			break;
	 	 case SASL_ABORT:
			this->user->WriteNumeric(906, "%s :SASL authentication aborted", this->user->nick.c_str());
			break;
		 case SASL_FAIL:
			this->user->WriteNumeric(904, "%s :SASL authentication failed", this->user->nick.c_str());
			break;
		 default:
			break;
		}

		this->state_announced = true;
	}


static int snd_ctl_elem_list(struct snd_card *card,
			     struct snd_ctl_elem_list __user *_list)
{
	struct list_head *plist;
	struct snd_ctl_elem_list list;
	struct snd_kcontrol *kctl;
	struct snd_ctl_elem_id *dst, *id;
	unsigned int offset, space, jidx;

	if (copy_from_user(&list, _list, sizeof(list)))
		return -EFAULT;
	offset = list.offset;
	space = list.space;
	/* try limit maximum space */
	if (space > 16384)
		return -ENOMEM;
	if (space > 0) {
		/* allocate temporary buffer for atomic operation */
		dst = vmalloc(space * sizeof(struct snd_ctl_elem_id));
		if (dst == NULL)
			return -ENOMEM;
		down_read(&card->controls_rwsem);
		list.count = card->controls_count;
		plist = card->controls.next;
		while (plist != &card->controls) {
			if (offset == 0)
				break;
			kctl = snd_kcontrol(plist);
			if (offset < kctl->count)
				break;
			offset -= kctl->count;
			plist = plist->next;
		}
		list.used = 0;
		id = dst;
		while (space > 0 && plist != &card->controls) {
			kctl = snd_kcontrol(plist);
			for (jidx = offset; space > 0 && jidx < kctl->count; jidx++) {
				snd_ctl_build_ioff(id, kctl, jidx);
				id++;
				space--;
				list.used++;
			}
			plist = plist->next;
			offset = 0;
		}
		up_read(&card->controls_rwsem);
		if (list.used > 0 &&
		    copy_to_user(list.pids, dst,
				 list.used * sizeof(struct snd_ctl_elem_id))) {
			vfree(dst);
			return -EFAULT;
		}
		vfree(dst);
	} else {
		down_read(&card->controls_rwsem);
		list.count = card->controls_count;
		up_read(&card->controls_rwsem);
	}
	if (copy_to_user(_list, &list, sizeof(list)))
		return -EFAULT;
	return 0;
}


int snd_ctl_remove(struct snd_card *card, struct snd_kcontrol *kcontrol)
{
	struct snd_ctl_elem_id id;
	unsigned int idx;

	if (snd_BUG_ON(!card || !kcontrol))
		return -EINVAL;
	list_del(&kcontrol->list);
	card->controls_count -= kcontrol->count;
	id = kcontrol->id;
	for (idx = 0; idx < kcontrol->count; idx++, id.index++, id.numid++)
		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_REMOVE, &id);
	snd_ctl_free_one(kcontrol);
	return 0;
}


int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
			struct kernel_lb_addr *eloc, uint32_t *elen, int inc)
{
	int alen;
	int8_t etype;
	uint8_t *ptr;
	struct short_ad *sad;
	struct long_ad *lad;
	struct udf_inode_info *iinfo = UDF_I(inode);

	if (!epos->bh) {
		if (!epos->offset)
			epos->offset = udf_file_entry_alloc_offset(inode);
		ptr = iinfo->i_ext.i_data + epos->offset -
			udf_file_entry_alloc_offset(inode) +
			iinfo->i_lenEAttr;
		alen = udf_file_entry_alloc_offset(inode) +
							iinfo->i_lenAlloc;
	} else {
		if (!epos->offset)
			epos->offset = sizeof(struct allocExtDesc);
		ptr = epos->bh->b_data + epos->offset;
		alen = sizeof(struct allocExtDesc) +
			le32_to_cpu(((struct allocExtDesc *)epos->bh->b_data)->
							lengthAllocDescs);
	}

	switch (iinfo->i_alloc_type) {
	case ICBTAG_FLAG_AD_SHORT:
		sad = udf_get_fileshortad(ptr, alen, &epos->offset, inc);
		if (!sad)
			return -1;
		etype = le32_to_cpu(sad->extLength) >> 30;
		eloc->logicalBlockNum = le32_to_cpu(sad->extPosition);
		eloc->partitionReferenceNum =
				iinfo->i_location.partitionReferenceNum;
		*elen = le32_to_cpu(sad->extLength) & UDF_EXTENT_LENGTH_MASK;
		break;
	case ICBTAG_FLAG_AD_LONG:
		lad = udf_get_filelongad(ptr, alen, &epos->offset, inc);
		if (!lad)
			return -1;
		etype = le32_to_cpu(lad->extLength) >> 30;
		*eloc = lelb_to_cpu(lad->extLocation);
		*elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
		break;
	default:
		udf_debug("alloc_type = %d unsupported\n", iinfo->i_alloc_type);
		return -1;
	}

	return etype;
}


static void udf_update_extent_cache(struct inode *inode, loff_t estart,
				    struct extent_position *pos, int next_epos)
{
	struct udf_inode_info *iinfo = UDF_I(inode);

	spin_lock(&iinfo->i_extent_cache_lock);
	/* Invalidate previously cached extent */
	__udf_clear_extent_cache(inode);
	if (pos->bh)
		get_bh(pos->bh);
	memcpy(&iinfo->cached_extent.epos, pos,
	       sizeof(struct extent_position));
	iinfo->cached_extent.lstart = estart;
	if (next_epos)
		switch (iinfo->i_alloc_type) {
		case ICBTAG_FLAG_AD_SHORT:
			iinfo->cached_extent.epos.offset -=
			sizeof(struct short_ad);
			break;
		case ICBTAG_FLAG_AD_LONG:
			iinfo->cached_extent.epos.offset -=
			sizeof(struct long_ad);
		}
	spin_unlock(&iinfo->i_extent_cache_lock);
}


  static Status Compute(OpKernelContext* context,
                        const typename TTypes<T, 1>::ConstTensor& sorted_inputs,
                        const typename TTypes<T, 1>::ConstTensor& values,
                        int batch_size, int num_inputs, int num_values,
                        typename TTypes<OutType, 1>::Tensor* output) {
    // TODO(rmlarsen): add multithreading or interleaving.
    for (int b = 0; b < batch_size; ++b) {
      const T* sorted_inputs_ptr = sorted_inputs.data() + b * num_inputs;
      OutType* output_ptr = output->data() + b * num_values;
      for (int i = 0; i < num_values; ++i) {
        output_ptr[i] =
            std::upper_bound(sorted_inputs_ptr, sorted_inputs_ptr + num_inputs,
                             values(i + b * num_values)) -
            sorted_inputs_ptr;
      }
    }

    return Status::OK();
  }


void CLASS parse_makernote(int base, int uptag)
{
  unsigned offset = 0, entries, tag, type, len, save, c;
  unsigned ver97 = 0, serial = 0, i, wbi = 0, wb[4] = {0, 0, 0, 0};
  uchar buf97[324], ci, cj, ck;
  short morder, sorder = order;
  char buf[10];
  unsigned SamsungKey[11];
  uchar NikonKey;

#ifdef LIBRAW_LIBRARY_BUILD
  unsigned custom_serial = 0;
  unsigned NikonLensDataVersion = 0;
  unsigned lenNikonLensData = 0;

  unsigned NikonFlashInfoVersion = 0;

  uchar *CanonCameraInfo;
  unsigned lenCanonCameraInfo = 0;
  unsigned typeCanonCameraInfo = 0;

  uchar *table_buf;
  uchar *table_buf_0x9050;
  ushort table_buf_0x9050_present = 0;
  uchar *table_buf_0x9402;
  ushort table_buf_0x9402_present = 0;
  uchar *table_buf_0x9403;
  ushort table_buf_0x9403_present = 0;
  uchar *table_buf_0x9406;
  ushort table_buf_0x9406_present = 0;
  uchar *table_buf_0x940c;
  ushort table_buf_0x940c_present = 0;
  uchar *table_buf_0x0116;
  ushort table_buf_0x0116_present = 0;

  INT64 fsize = ifp->size();
#endif
  /*
     The MakerNote might have its own TIFF header (possibly with
     its own byte-order!), or it might just be a table.
   */
  if (!strncmp(make, "Nokia", 5))
    return;
  fread(buf, 1, 10, ifp);

/*
  printf("===>>buf: 0x");
  for (int i = 0; i < sizeof buf; i ++) {
        printf("%02x", buf[i]);
  }
  putchar('\n');
*/

  if (!strncmp(buf, "KDK", 3) || /* these aren't TIFF tables */
      !strncmp(buf, "VER", 3) || !strncmp(buf, "IIII", 4) || !strncmp(buf, "MMMM", 4))
    return;
  if (!strncmp(buf, "KC", 2) || /* Konica KD-400Z, KD-510Z */
      !strncmp(buf, "MLY", 3))
  { /* Minolta DiMAGE G series */
    order = 0x4d4d;
    while ((i = ftell(ifp)) < data_offset && i < 16384)
    {
      wb[0] = wb[2];
      wb[2] = wb[1];
      wb[1] = wb[3];
      wb[3] = get2();
      if (wb[1] == 256 && wb[3] == 256 && wb[0] > 256 && wb[0] < 640 && wb[2] > 256 && wb[2] < 640)
        FORC4 cam_mul[c] = wb[c];
    }
    goto quit;
  }
  if (!strcmp(buf, "Nikon"))
  {
    base = ftell(ifp);
    order = get2();
    if (get2() != 42)
      goto quit;
    offset = get4();
    fseek(ifp, offset - 8, SEEK_CUR);
  }
  else if (!strcmp(buf, "OLYMPUS") || !strcmp(buf, "PENTAX "))
  {
    base = ftell(ifp) - 10;
    fseek(ifp, -2, SEEK_CUR);
    order = get2();
    if (buf[0] == 'O')
      get2();
  }
  else if (!strncmp(buf, "SONY", 4) || !strcmp(buf, "Panasonic"))
  {
    goto nf;
  }
  else if (!strncmp(buf, "FUJIFILM", 8))
  {
    base = ftell(ifp) - 10;
  nf:
    order = 0x4949;
    fseek(ifp, 2, SEEK_CUR);
  }
  else if (!strcmp(buf, "OLYMP") || !strcmp(buf, "LEICA") || !strcmp(buf, "Ricoh") || !strcmp(buf, "EPSON"))
    fseek(ifp, -2, SEEK_CUR);
  else if (!strcmp(buf, "AOC") || !strcmp(buf, "QVC"))
    fseek(ifp, -4, SEEK_CUR);
  else
  {
    fseek(ifp, -10, SEEK_CUR);
    if (!strncmp(make, "SAMSUNG", 7))
      base = ftell(ifp);
  }

  // adjust pos & base for Leica M8/M9/M Mono tags and dir in tag 0x3400
  if (!strncasecmp(make, "LEICA", 5))
  {
    if (!strncmp(model, "M8", 2) || !strncasecmp(model, "Leica M8", 8) || !strncasecmp(model, "LEICA X", 7))
    {
      base = ftell(ifp) - 8;
    }
    else if (!strncasecmp(model, "LEICA M (Typ 240)", 17))
    {
      base = 0;
    }
    else if (!strncmp(model, "M9", 2) || !strncasecmp(model, "Leica M9", 8) || !strncasecmp(model, "M Monochrom", 11) ||
             !strncasecmp(model, "Leica M Monochrom", 11))
    {
      if (!uptag)
      {
        base = ftell(ifp) - 10;
        fseek(ifp, 8, SEEK_CUR);
      }
      else if (uptag == 0x3400)
      {
        fseek(ifp, 10, SEEK_CUR);
        base += 10;
      }
    }
    else if (!strncasecmp(model, "LEICA T", 7))
    {
      base = ftell(ifp) - 8;
#ifdef LIBRAW_LIBRARY_BUILD
      imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Leica_T;
#endif
    }
#ifdef LIBRAW_LIBRARY_BUILD
    else if (!strncasecmp(model, "LEICA SL", 8))
    {
      imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Leica_SL;
      imgdata.lens.makernotes.CameraFormat = LIBRAW_FORMAT_FF;
    }
#endif
  }

  entries = get2();
  if (entries > 1000)
    return;
  morder = order;

  while (entries--)
  {
    order = morder;
    tiff_get(base, &tag, &type, &len, &save);
    tag |= uptag << 16;

#ifdef LIBRAW_LIBRARY_BUILD
    INT64 _pos = ftell(ifp);
    if (len > 8 && _pos + len > 2 * fsize)
      continue;
    if (!strncmp(make, "Canon", 5))
    {
      if (tag == 0x000d && len < 256000) // camera info
      {
        if (type != 4) {
          CanonCameraInfo = (uchar *)malloc(MAX(16,len));
          fread(CanonCameraInfo, len, 1, ifp);
        } else {
          CanonCameraInfo = (uchar *)malloc(MAX(16,len*4));
          fread(CanonCameraInfo, len, 4, ifp);
        }
        lenCanonCameraInfo = len;
        typeCanonCameraInfo = type;
      }

      else if (tag == 0x10) // Canon ModelID
      {
        unique_id = get4();
        unique_id = setCanonBodyFeatures(unique_id);
        if (lenCanonCameraInfo)
        {
          processCanonCameraInfo(unique_id, CanonCameraInfo, lenCanonCameraInfo, typeCanonCameraInfo);
          free(CanonCameraInfo);
          CanonCameraInfo = 0;
          lenCanonCameraInfo = 0;
        }
      }

      else
        parseCanonMakernotes(tag, type, len);
    }

    else if (!strncmp(make, "FUJI", 4))
    {
      if (tag == 0x0010)
      {
        char FujiSerial[sizeof(imgdata.shootinginfo.InternalBodySerial)];
        char *words[4];
        char yy[2], mm[3], dd[3], ystr[16], ynum[16];
        int year, nwords, ynum_len;
        unsigned c;
        stmread(FujiSerial, len, ifp);
        nwords = getwords(FujiSerial, words, 4, sizeof(imgdata.shootinginfo.InternalBodySerial));
        for (int i = 0; i < nwords; i++)
        {
          mm[2] = dd[2] = 0;
          if (strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) < 18)
            if (i == 0)
              strncpy(imgdata.shootinginfo.InternalBodySerial, words[0],
                      sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
            else
            {
              char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];
              snprintf(tbuf, sizeof(tbuf), "%s %s", imgdata.shootinginfo.InternalBodySerial, words[i]);
              strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                      sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
            }
          else
          {
            strncpy(dd, words[i] + strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 14, 2);
            strncpy(mm, words[i] + strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 16, 2);
            strncpy(yy, words[i] + strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 18, 2);
            year = (yy[0] - '0') * 10 + (yy[1] - '0');
            if (year < 70)
              year += 2000;
            else
              year += 1900;

            ynum_len = (int)strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 18;
            strncpy(ynum, words[i], ynum_len);
            ynum[ynum_len] = 0;
            for (int j = 0; ynum[j] && ynum[j + 1] && sscanf(ynum + j, "%2x", &c); j += 2)
              ystr[j / 2] = c;
            ystr[ynum_len / 2 + 1] = 0;
            strcpy(model2, ystr);

            if (i == 0)
            {
              char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];

              if (nwords == 1)
                snprintf(tbuf, sizeof(tbuf), "%s %s %d:%s:%s",
                         words[0] + strnlen(words[0], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 12, ystr,
                         year, mm, dd);

              else
                snprintf(tbuf, sizeof(tbuf), "%s %d:%s:%s %s", ystr, year, mm, dd,
                         words[0] + strnlen(words[0], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 12);

              strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                      sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
            }
            else
            {
              char tbuf[sizeof(imgdata.shootinginfo.InternalBodySerial)];
              snprintf(tbuf, sizeof(tbuf), "%s %s %d:%s:%s %s", imgdata.shootinginfo.InternalBodySerial, ystr, year, mm,
                       dd, words[i] + strnlen(words[i], sizeof(imgdata.shootinginfo.InternalBodySerial) - 1) - 12);
              strncpy(imgdata.shootinginfo.InternalBodySerial, tbuf,
                      sizeof(imgdata.shootinginfo.InternalBodySerial) - 1);
            }
          }
        }
      }
      else
        parseFujiMakernotes(tag, type);
    }

    else if (!strncasecmp(model, "Hasselblad X1D", 14)
          || !strncasecmp(model, "Hasselblad H6D", 14)
          || !strncasecmp(model, "Hasselblad A6D", 14))
    {
      if (tag == 0x0045)
      {
        imgdata.makernotes.hasselblad.BaseISO = get4();
      }
      else if (tag == 0x0046)
      {
        imgdata.makernotes.hasselblad.Gain = getreal(type);
      }
    }

    else if (!strncasecmp(make, "LEICA", 5))
    {
      if (((tag == 0x035e) || (tag == 0x035f)) && (type == 10) && (len == 9))
      {
        int ind = tag == 0x035e ? 0 : 1;
        for (int j = 0; j < 3; j++)
          FORCC imgdata.color.dng_color[ind].forwardmatrix[j][c] = getreal(type);
        imgdata.color.dng_color[ind].parsedfields |= LIBRAW_DNGFM_FORWARDMATRIX;
      }

      if (tag == 0x34003402) imgdata.other.CameraTemperature = getreal(type);

      if ((tag == 0x0320) && (type == 9) && (len == 1) &&
          !strncasecmp (make, "Leica Camera AG", 15)   &&
          !strncmp (buf, "LEICA", 5) && (buf[5] == 0) && (buf[6] == 0) && (buf[7] == 0)
         ) imgdata.other.CameraTemperature = getreal(type);

      if ((tag == 0x0303) && (type != 4))
      {
        stmread(imgdata.lens.makernotes.Lens, len, ifp);
      }

      if ((tag == 0x3405) || (tag == 0x0310) || (tag == 0x34003405))
      {
        imgdata.lens.makernotes.LensID = get4();
        imgdata.lens.makernotes.LensID =
            ((imgdata.lens.makernotes.LensID >> 2) << 8) | (imgdata.lens.makernotes.LensID & 0x3);
        if (imgdata.lens.makernotes.LensID != -1)
        {
          if ((model[0] == 'M') || !strncasecmp(model, "LEICA M", 7))
          {
            imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Leica_M;
            if (imgdata.lens.makernotes.LensID)
              imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_Leica_M;
          }
          else if ((model[0] == 'S') || !strncasecmp(model, "LEICA S", 7))
          {
            imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Leica_S;
            if (imgdata.lens.makernotes.Lens[0])
              imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_Leica_S;
          }
        }
      }

      else if (((tag == 0x0313) || (tag == 0x34003406)) && (fabs(imgdata.lens.makernotes.CurAp) < 0.17f) &&
               ((type == 10) || (type == 5)))
      {
        imgdata.lens.makernotes.CurAp = getreal(type);
        if (imgdata.lens.makernotes.CurAp > 126.3)
          imgdata.lens.makernotes.CurAp = 0.0f;
      }

      else if (tag == 0x3400)
      {
        parse_makernote(base, 0x3400);
      }
    }

    else if (!strncmp(make, "NIKON", 5))
    {
      if (tag == 0x000a)
      {
        imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FixedLens;
        imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
      }
      else if (tag == 0x0012)
      {
        char a, b, c;
        a = fgetc(ifp);
        b = fgetc(ifp);
        c = fgetc(ifp);
        if (c)
          imgdata.other.FlashEC = (float)(a * b) / (float)c;
      }
      else if (tag == 0x003b) // all 1s for regular exposures
      {
        imgdata.makernotes.nikon.ME_WB[0] = getreal(type);
        imgdata.makernotes.nikon.ME_WB[2] = getreal(type);
        imgdata.makernotes.nikon.ME_WB[1] = getreal(type);
        imgdata.makernotes.nikon.ME_WB[3] = getreal(type);
      }
      else if (tag == 0x0082) // lens attachment
      {
        stmread(imgdata.lens.makernotes.Attachment, len, ifp);
      }
      else if (tag == 0x0083) // lens type
      {
        imgdata.lens.nikon.NikonLensType = fgetc(ifp);
      }
      else if (tag == 0x0084) // lens
      {
        imgdata.lens.makernotes.MinFocal = getreal(type);
        imgdata.lens.makernotes.MaxFocal = getreal(type);
        imgdata.lens.makernotes.MaxAp4MinFocal = getreal(type);
        imgdata.lens.makernotes.MaxAp4MaxFocal = getreal(type);
      }
      else if (tag == 0x008b) // lens f-stops
      {
        uchar a, b, c;
        a = fgetc(ifp);
        b = fgetc(ifp);
        c = fgetc(ifp);
        if (c)
        {
          imgdata.lens.nikon.NikonLensFStops = a * b * (12 / c);
          imgdata.lens.makernotes.LensFStops = (float)imgdata.lens.nikon.NikonLensFStops / 12.0f;
        }
      }
      else if (tag == 0x0093) // Nikon compression
      {
        imgdata.makernotes.nikon.NEFCompression = i = get2();
        if ((i == 7) || (i == 9))
        {
          imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FixedLens;
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
        }
      }
      else if (tag == 0x0098) // contains lens data
      {
        for (i = 0; i < 4; i++)
        {
          NikonLensDataVersion = NikonLensDataVersion * 10 + fgetc(ifp) - '0';
        }
        switch (NikonLensDataVersion)
        {
        case 100:
          lenNikonLensData = 9;
          break;
        case 101:
        case 201: // encrypted, starting from v.201
        case 202:
        case 203:
          lenNikonLensData = 15;
          break;
        case 204:
          lenNikonLensData = 16;
          break;
        case 400:
          lenNikonLensData = 459;
          break;
        case 401:
          lenNikonLensData = 590;
          break;
        case 402:
          lenNikonLensData = 509;
          break;
        case 403:
          lenNikonLensData = 879;
          break;
        }
        if (lenNikonLensData > 0)
        {
          table_buf = (uchar *)malloc(lenNikonLensData);
          fread(table_buf, lenNikonLensData, 1, ifp);
          if ((NikonLensDataVersion < 201) && lenNikonLensData)
          {
            processNikonLensData(table_buf, lenNikonLensData);
            free(table_buf);
            lenNikonLensData = 0;
          }
        }
      }
      else if (tag == 0x00a0)
      {
        stmread(imgdata.shootinginfo.BodySerial, len, ifp);
      }
      else if (tag == 0x00a8) // contains flash data
      {
        for (i = 0; i < 4; i++)
        {
          NikonFlashInfoVersion = NikonFlashInfoVersion * 10 + fgetc(ifp) - '0';
        }
      }
      else if (tag == 0x00b0)
      {
        get4(); // ME tag version, 4 symbols
        imgdata.makernotes.nikon.ExposureMode = get4();
        imgdata.makernotes.nikon.nMEshots = get4();
        imgdata.makernotes.nikon.MEgainOn = get4();
      }
    }

    else if (!strncmp(make, "OLYMPUS", 7))
    {
      switch (tag)
      {
      case 0x0404:
      case 0x101a:
      case 0x20100101:
        if (!imgdata.shootinginfo.BodySerial[0])
          stmread(imgdata.shootinginfo.BodySerial, len, ifp);
        break;
      case 0x20100102:
        if (!imgdata.shootinginfo.InternalBodySerial[0])
          stmread(imgdata.shootinginfo.InternalBodySerial, len, ifp);
        break;
      case 0x0207:
      case 0x20100100:
      {
        uchar sOlyID[8];
        fread(sOlyID, MIN(len, 7), 1, ifp);
        sOlyID[7] = 0;
        OlyID = sOlyID[0];
        i = 1;
        while (i < 7 && sOlyID[i])
        {
          OlyID = OlyID << 8 | sOlyID[i];
          i++;
        }
        setOlympusBodyFeatures(OlyID);
      }
      break;
      case 0x1002:
        imgdata.lens.makernotes.CurAp = powf64(2.0f, getreal(type) / 2);
        break;
      case 0x20401112:
        imgdata.makernotes.olympus.OlympusCropID = get2();
        break;
      case 0x20401113:
        FORC4 imgdata.makernotes.olympus.OlympusFrame[c] = get2();
        break;
      case 0x20100201:
      {
        unsigned long long oly_lensid[3];
        oly_lensid[0] = fgetc(ifp);
        fgetc(ifp);
        oly_lensid[1] = fgetc(ifp);
        oly_lensid[2] = fgetc(ifp);
        imgdata.lens.makernotes.LensID = (oly_lensid[0] << 16) | (oly_lensid[1] << 8) | oly_lensid[2];
      }
        imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FT;
        imgdata.lens.makernotes.LensFormat = LIBRAW_FORMAT_FT;
        if (((imgdata.lens.makernotes.LensID < 0x20000) || (imgdata.lens.makernotes.LensID > 0x4ffff)) &&
            (imgdata.lens.makernotes.LensID & 0x10))
        {
          imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_mFT;
        }
        break;
      case 0x20100202:
        stmread(imgdata.lens.LensSerial, len, ifp);
        break;
      case 0x20100203:
        stmread(imgdata.lens.makernotes.Lens, len, ifp);
        break;
      case 0x20100205:
        imgdata.lens.makernotes.MaxAp4MinFocal = powf64(sqrt(2.0f), get2() / 256.0f);
        break;
      case 0x20100206:
        imgdata.lens.makernotes.MaxAp4MaxFocal = powf64(sqrt(2.0f), get2() / 256.0f);
        break;
      case 0x20100207:
        imgdata.lens.makernotes.MinFocal = (float)get2();
        break;
      case 0x20100208:
        imgdata.lens.makernotes.MaxFocal = (float)get2();
        if (imgdata.lens.makernotes.MaxFocal > 1000.0f)
          imgdata.lens.makernotes.MaxFocal = imgdata.lens.makernotes.MinFocal;
        break;
      case 0x2010020a:
        imgdata.lens.makernotes.MaxAp4CurFocal = powf64(sqrt(2.0f), get2() / 256.0f);
        break;
      case 0x20100301:
        imgdata.lens.makernotes.TeleconverterID = fgetc(ifp) << 8;
        fgetc(ifp);
        imgdata.lens.makernotes.TeleconverterID = imgdata.lens.makernotes.TeleconverterID | fgetc(ifp);
        break;
      case 0x20100303:
        stmread(imgdata.lens.makernotes.Teleconverter, len, ifp);
        break;
      case 0x20100403:
        stmread(imgdata.lens.makernotes.Attachment, len, ifp);
        break;
      case 0x1007:
        imgdata.other.SensorTemperature = (float)get2();
        break;
      case 0x1008:
        imgdata.other.LensTemperature = (float)get2();
        break;
      case 0x20401306:
        {
          int temp = get2();
          if ((temp != 0) && (temp != 100)) {
						if (temp < 61) imgdata.other.CameraTemperature = (float) temp;
						else imgdata.other.CameraTemperature = (float) (temp-32) / 1.8f;
						if ((OlyID == 0x4434353933ULL) &&   // TG-5
								(imgdata.other.exifAmbientTemperature > -273.15f))
							imgdata.other.CameraTemperature += imgdata.other.exifAmbientTemperature;
						}
        }
        break;
      case 0x20501500:
        if (OlyID != 0x0ULL) {
          short temp = get2();
          if ((OlyID == 0x4434303430ULL) || // E-1
              (OlyID == 0x5330303336ULL) || // E-M5
              (len != 1))
            imgdata.other.SensorTemperature = (float)temp;
          else if ((temp != -32768) && (temp != 0)) {
            if (temp > 199) imgdata.other.SensorTemperature = 86.474958f - 0.120228f*(float)temp;
            else imgdata.other.SensorTemperature = (float)temp;
          }
        }
        break;
      }
    }

    else if ((!strncmp(make, "PENTAX", 6) || !strncmp(make, "RICOH", 5)) && !strncmp(model, "GR", 2))
    {
      if (tag == 0x0005)
      {
        char buffer[17];
        int count = 0;
        fread(buffer, 16, 1, ifp);
        buffer[16] = 0;
        for (int i = 0; i < 16; i++)
        {
          //    	        sprintf(imgdata.shootinginfo.InternalBodySerial+2*i, "%02x", buffer[i]);
          if ((isspace(buffer[i])) || (buffer[i] == 0x2D) || (isalnum(buffer[i])))
            count++;
        }
        if (count == 16)
        {
          sprintf(imgdata.shootinginfo.BodySerial, "%8s", buffer + 8);
          buffer[8] = 0;
          sprintf(imgdata.shootinginfo.InternalBodySerial, "%8s", buffer);
        }
        else
        {
          sprintf(imgdata.shootinginfo.BodySerial, "%02x%02x%02x%02x", buffer[4], buffer[5], buffer[6], buffer[7]);
          sprintf(imgdata.shootinginfo.InternalBodySerial, "%02x%02x%02x%02x", buffer[8], buffer[9], buffer[10],
                  buffer[11]);
        }
      }
      else if ((tag == 0x1001) && (type == 3))
      {
        imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
        imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FixedLens;
        imgdata.lens.makernotes.CameraFormat = LIBRAW_FORMAT_APSC;
        imgdata.lens.makernotes.LensID = -1;
        imgdata.lens.makernotes.FocalType = 1;
      }

      else if ((tag == 0x100b) && (type == 10))
      {
        imgdata.other.FlashEC = getreal(type);
      }

      else if ((tag == 0x1017) && (get2() == 2))
      {
        strcpy(imgdata.lens.makernotes.Attachment, "Wide-Angle Adapter");
      }
      else if (tag == 0x1500)
      {
        imgdata.lens.makernotes.CurFocal = getreal(type);
      }
    }

    else if (!strncmp(make, "RICOH", 5) && strncmp(model, "PENTAX", 6))
    {
      if ((tag == 0x0005) && !strncmp(model, "GXR", 3))
      {
        char buffer[9];
        buffer[8] = 0;
        fread(buffer, 8, 1, ifp);
        sprintf(imgdata.shootinginfo.InternalBodySerial, "%8s", buffer);
      }

      else if ((tag == 0x100b) && (type == 10))
      {
        imgdata.other.FlashEC = getreal(type);
      }

      else if ((tag == 0x1017) && (get2() == 2))
      {
        strcpy(imgdata.lens.makernotes.Attachment, "Wide-Angle Adapter");
      }

      else if (tag == 0x1500)
      {
        imgdata.lens.makernotes.CurFocal = getreal(type);
      }

      else if ((tag == 0x2001) && !strncmp(model, "GXR", 3))
      {
        short ntags, cur_tag;
        fseek(ifp, 20, SEEK_CUR);
        ntags = get2();
        cur_tag = get2();
        while (cur_tag != 0x002c)
        {
          fseek(ifp, 10, SEEK_CUR);
          cur_tag = get2();
        }
        fseek(ifp, 6, SEEK_CUR);
        fseek(ifp, get4() + 20, SEEK_SET);
        stread(imgdata.shootinginfo.BodySerial, 12, ifp);
        get2();
        imgdata.lens.makernotes.LensID = getc(ifp) - '0';
        switch (imgdata.lens.makernotes.LensID)
        {
        case 1:
        case 2:
        case 3:
        case 5:
        case 6:
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
          imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_RicohModule;
          break;
        case 8:
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Leica_M;
          imgdata.lens.makernotes.CameraFormat = LIBRAW_FORMAT_APSC;
          imgdata.lens.makernotes.LensID = -1;
          break;
        default:
          imgdata.lens.makernotes.LensID = -1;
        }
        fseek(ifp, 17, SEEK_CUR);
        stread(imgdata.lens.LensSerial, 12, ifp);
      }
    }

    else if ((!strncmp(make, "PENTAX", 6) || !strncmp(model, "PENTAX", 6) ||
              (!strncmp(make, "SAMSUNG", 7) && dng_version)) &&
             strncmp(model, "GR", 2))
    {
      if (tag == 0x0005)
      {
        unique_id = get4();
        setPentaxBodyFeatures(unique_id);
      }
      else if (tag == 0x0013)
      {
        imgdata.lens.makernotes.CurAp = (float)get2() / 10.0f;
      }
      else if (tag == 0x0014)
      {
        PentaxISO(get2());
      }
      else if (tag == 0x001d)
      {
        imgdata.lens.makernotes.CurFocal = (float)get4() / 100.0f;
      }
      else if (tag == 0x003f)
      {
        imgdata.lens.makernotes.LensID = fgetc(ifp) << 8 | fgetc(ifp);
      }
      else if (tag == 0x0047)
      {
        imgdata.other.CameraTemperature = (float)fgetc(ifp);
      }
      else if (tag == 0x004d)
      {
        if (type == 9)
          imgdata.other.FlashEC = getreal(type) / 256.0f;
        else
          imgdata.other.FlashEC = (float)((signed short)fgetc(ifp)) / 6.0f;
      }
      else if (tag == 0x007e)
      {
        imgdata.color.linear_max[0] = imgdata.color.linear_max[1] = imgdata.color.linear_max[2] =
            imgdata.color.linear_max[3] = (long)(-1) * get4();
      }
      else if (tag == 0x0207)
      {
        if (len < 65535) // Safety belt
          PentaxLensInfo(imgdata.lens.makernotes.CamID, len);
      }
      else if ((tag >= 0x020d) && (tag <= 0x0214))
      {
        FORC4 imgdata.color.WB_Coeffs[Pentax_wb_list1[tag - 0x020d]][c ^ (c >> 1)] = get2();
      }
      else if (tag == 0x0221)
      {
        int nWB = get2();
        if (nWB <= sizeof(imgdata.color.WBCT_Coeffs) / sizeof(imgdata.color.WBCT_Coeffs[0]))
          for (int i = 0; i < nWB; i++)
          {
            imgdata.color.WBCT_Coeffs[i][0] = (unsigned)0xcfc6 - get2();
            fseek(ifp, 2, SEEK_CUR);
            imgdata.color.WBCT_Coeffs[i][1] = get2();
            imgdata.color.WBCT_Coeffs[i][2] = imgdata.color.WBCT_Coeffs[i][4] = 0x2000;
            imgdata.color.WBCT_Coeffs[i][3] = get2();
          }
      }
      else if (tag == 0x0215)
      {
        fseek(ifp, 16, SEEK_CUR);
        sprintf(imgdata.shootinginfo.InternalBodySerial, "%d", get4());
      }
      else if (tag == 0x0229)
      {
        stmread(imgdata.shootinginfo.BodySerial, len, ifp);
      }
      else if (tag == 0x022d)
      {
        int wb_ind;
        getc(ifp);
        for (int wb_cnt = 0; wb_cnt < nPentax_wb_list2; wb_cnt++)
        {
          wb_ind = getc(ifp);
          if (wb_ind < nPentax_wb_list2)
            FORC4 imgdata.color.WB_Coeffs[Pentax_wb_list2[wb_ind]][c ^ (c >> 1)] = get2();
        }
      }
      else if (tag == 0x0239) // Q-series lens info (LensInfoQ)
      {
        char LensInfo[20];
        fseek(ifp, 2, SEEK_CUR);
        stread(imgdata.lens.makernotes.Lens, 30, ifp);
        strcat(imgdata.lens.makernotes.Lens, " ");
        stread(LensInfo, 20, ifp);
        strcat(imgdata.lens.makernotes.Lens, LensInfo);
      }
    }

    else if (!strncmp(make, "SAMSUNG", 7))
    {
      if (tag == 0x0002)
      {
        if (get4() == 0x2000)
        {
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Samsung_NX;
        }
        else if (!strncmp(model, "NX mini", 7))
        {
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_Samsung_NX_M;
        }
        else
        {
          imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
          imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FixedLens;
        }
      }
      else if (tag == 0x0003)
      {
        unique_id = imgdata.lens.makernotes.CamID = get4();
      }
      else if (tag == 0x0043)
      {
        int temp = get4();
        if (temp) {
          imgdata.other.CameraTemperature = (float) temp;
          if (get4() == 10) imgdata.other.CameraTemperature /= 10.0f;
        }
      }
      else if (tag == 0xa002)
      {
        stmread(imgdata.shootinginfo.BodySerial, len, ifp);
      }
      else if (tag == 0xa003)
      {
        imgdata.lens.makernotes.LensID = get2();
        if (imgdata.lens.makernotes.LensID)
          imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_Samsung_NX;
      }
      else if (tag == 0xa005)
      {
        stmread(imgdata.lens.InternalLensSerial, len, ifp);
      }
      else if (tag == 0xa019)
      {
        imgdata.lens.makernotes.CurAp = getreal(type);
      }
      else if (tag == 0xa01a)
      {
        imgdata.lens.makernotes.FocalLengthIn35mmFormat = get4() / 10.0f;
        if (imgdata.lens.makernotes.FocalLengthIn35mmFormat < 10.0f)
          imgdata.lens.makernotes.FocalLengthIn35mmFormat *= 10.0f;
      }
    }

    else if (!strncasecmp(make, "SONY", 4) ||
             !strncasecmp(make, "Konica", 6) ||
             !strncasecmp(make, "Minolta", 7) ||
             (!strncasecmp(make, "Hasselblad", 10) &&
              (!strncasecmp(model, "Stellar", 7) ||
               !strncasecmp(model, "Lunar", 5) ||
               !strncasecmp(model, "Lusso", 5) ||
               !strncasecmp(model, "HV", 2))))
    {
      parseSonyMakernotes(tag, type, len, nonDNG,
                          table_buf_0x9050, table_buf_0x9050_present,
                          table_buf_0x940c, table_buf_0x940c_present,
                          table_buf_0x0116, table_buf_0x0116_present,
                          table_buf_0x9402, table_buf_0x9402_present,
                          table_buf_0x9403, table_buf_0x9403_present,
                          table_buf_0x9406, table_buf_0x9406_present);
    }

    fseek(ifp, _pos, SEEK_SET);
#endif

    if (tag == 2 && strstr(make, "NIKON") && !iso_speed)
      iso_speed = (get2(), get2());
    if (tag == 37 && strstr(make, "NIKON") && (!iso_speed || iso_speed == 65535))
    {
      unsigned char cc;
      fread(&cc, 1, 1, ifp);
      iso_speed = int(100.0 * powf64(2.0f, float(cc) / 12.0 - 5.0));
    }
    if (tag == 4 && len > 26 && len < 35)
    {
      if ((i = (get4(), get2())) != 0x7fff && (!iso_speed || iso_speed == 65535))
        iso_speed = 50 * powf64(2.0, i / 32.0 - 4);
#ifdef LIBRAW_LIBRARY_BUILD
      get4();
#else
      if ((i = (get2(), get2())) != 0x7fff && !aperture)
        aperture = powf64(2.0, i / 64.0);
#endif
      if ((i = get2()) != 0xffff && !shutter)
        shutter = powf64(2.0, (short)i / -32.0);
      wbi = (get2(), get2());
      shot_order = (get2(), get2());
    }
    if ((tag == 4 || tag == 0x114) && !strncmp(make, "KONICA", 6))
    {
      fseek(ifp, tag == 4 ? 140 : 160, SEEK_CUR);
      switch (get2())
      {
      case 72:
        flip = 0;
        break;
      case 76:
        flip = 6;
        break;
      case 82:
        flip = 5;
        break;
      }
    }
    if (tag == 7 && type == 2 && len > 20)
      fgets(model2, 64, ifp);
    if (tag == 8 && type == 4)
      shot_order = get4();
    if (tag == 9 && !strncmp(make, "Canon", 5))
      fread(artist, 64, 1, ifp);
    if (tag == 0xc && len == 4)
      FORC3 cam_mul[(c << 1 | c >> 1) & 3] = getreal(type);
    if (tag == 0xd && type == 7 && get2() == 0xaaaa)
    {
#if 0 /* Canon rotation data is handled by EXIF.Orientation */
      for (c = i = 2; (ushort)c != 0xbbbb && i < len; i++)
        c = c << 8 | fgetc(ifp);
      while ((i += 4) < len - 5)
        if (get4() == 257 && (i = len) && (c = (get4(), fgetc(ifp))) < 3)
          flip = "065"[c] - '0';
#endif
    }

#ifndef LIBRAW_LIBRARY_BUILD
    if (tag == 0x10 && type == 4)
      unique_id = get4();
#endif

#ifdef LIBRAW_LIBRARY_BUILD
    INT64 _pos2 = ftell(ifp);
    if (!strncasecmp(make, "Olympus", 7))
    {
      short nWB, tWB;
      if ((tag == 0x20300108) || (tag == 0x20310109))
        imgdata.makernotes.olympus.ColorSpace = get2();

      if ((tag == 0x20400101) && (len == 2) && (!strncasecmp(model, "E-410", 5) || !strncasecmp(model, "E-510", 5)))
      {
        int i;
        for (i = 0; i < 64; i++)
          imgdata.color.WBCT_Coeffs[i][2] = imgdata.color.WBCT_Coeffs[i][4] = imgdata.color.WB_Coeffs[i][1] =
              imgdata.color.WB_Coeffs[i][3] = 0x100;
        for (i = 64; i < 256; i++)
          imgdata.color.WB_Coeffs[i][1] = imgdata.color.WB_Coeffs[i][3] = 0x100;
      }
      if ((tag >= 0x20400101) && (tag <= 0x20400111))
      {
        nWB = tag - 0x20400101;
        tWB = Oly_wb_list2[nWB << 1];
        ushort CT = Oly_wb_list2[(nWB << 1) | 1];
        int wb[4];
        wb[0] = get2();
        wb[2] = get2();
        if (tWB != 0x100)
        {
          imgdata.color.WB_Coeffs[tWB][0] = wb[0];
          imgdata.color.WB_Coeffs[tWB][2] = wb[2];
        }
        if (CT)
        {
          imgdata.color.WBCT_Coeffs[nWB - 1][0] = CT;
          imgdata.color.WBCT_Coeffs[nWB - 1][1] = wb[0];
          imgdata.color.WBCT_Coeffs[nWB - 1][3] = wb[2];
        }
        if (len == 4)
        {
          wb[1] = get2();
          wb[3] = get2();
          if (tWB != 0x100)
          {
            imgdata.color.WB_Coeffs[tWB][1] = wb[1];
            imgdata.color.WB_Coeffs[tWB][3] = wb[3];
          }
          if (CT)
          {
            imgdata.color.WBCT_Coeffs[nWB - 1][2] = wb[1];
            imgdata.color.WBCT_Coeffs[nWB - 1][4] = wb[3];
          }
        }
      }
      if ((tag >= 0x20400112) && (tag <= 0x2040011e))
      {
        nWB = tag - 0x20400112;
        int wbG = get2();
        tWB = Oly_wb_list2[nWB << 1];
        if (nWB)
          imgdata.color.WBCT_Coeffs[nWB - 1][2] = imgdata.color.WBCT_Coeffs[nWB - 1][4] = wbG;
        if (tWB != 0x100)
          imgdata.color.WB_Coeffs[tWB][1] = imgdata.color.WB_Coeffs[tWB][3] = wbG;
      }

      if (tag == 0x20400121)
      {
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][0] = get2();
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][2] = get2();
        if (len == 4)
        {
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][1] = get2();
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][3] = get2();
        }
      }
      if (tag == 0x2040011f)
      {
        int wbG = get2();
        if (imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][0])
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][1] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Flash][3] = wbG;
        FORC4 if (imgdata.color.WB_Coeffs[LIBRAW_WBI_Custom1 + c][0])
            imgdata.color.WB_Coeffs[LIBRAW_WBI_Custom1 + c][1] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Custom1 + c][3] =
            wbG;
      }
      if ((tag == 0x30000110) && strcmp(software, "v757-71"))
      {
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][0] = get2();
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][2] = get2();
        if (len == 2)
        {
          for (int i = 0; i < 256; i++)
            imgdata.color.WB_Coeffs[i][1] = imgdata.color.WB_Coeffs[i][3] = 0x100;
        }
      }
      if ((((tag >= 0x30000120) && (tag <= 0x30000124)) || ((tag >= 0x30000130) && (tag <= 0x30000133))) &&
          strcmp(software, "v757-71"))
      {
        int wb_ind;
        if (tag <= 0x30000124)
          wb_ind = tag - 0x30000120;
        else
          wb_ind = tag - 0x30000130 + 5;
        imgdata.color.WB_Coeffs[Oly_wb_list1[wb_ind]][0] = get2();
        imgdata.color.WB_Coeffs[Oly_wb_list1[wb_ind]][2] = get2();
      }

      if ((tag == 0x20400805) && (len == 2))
      {
        imgdata.makernotes.olympus.OlympusSensorCalibration[0] = getreal(type);
        imgdata.makernotes.olympus.OlympusSensorCalibration[1] = getreal(type);
        FORC4 imgdata.color.linear_max[c] = imgdata.makernotes.olympus.OlympusSensorCalibration[0];
      }
      if (tag == 0x20200401)
      {
        imgdata.other.FlashEC = getreal(type);
      }
    }
    fseek(ifp, _pos2, SEEK_SET);

#endif
    if (tag == 0x11 && is_raw && !strncmp(make, "NIKON", 5))
    {
      fseek(ifp, get4() + base, SEEK_SET);
      parse_tiff_ifd(base);
    }
    if (tag == 0x14 && type == 7)
    {
      if (len == 2560)
      {
        fseek(ifp, 1248, SEEK_CUR);
        goto get2_256;
      }
      fread(buf, 1, 10, ifp);
      if (!strncmp(buf, "NRW ", 4))
      {
        fseek(ifp, strcmp(buf + 4, "0100") ? 46 : 1546, SEEK_CUR);
        cam_mul[0] = get4() << 2;
        cam_mul[1] = get4() + get4();
        cam_mul[2] = get4() << 2;
      }
    }
    if (tag == 0x15 && type == 2 && is_raw)
      fread(model, 64, 1, ifp);
    if (strstr(make, "PENTAX"))
    {
      if (tag == 0x1b)
        tag = 0x1018;
      if (tag == 0x1c)
        tag = 0x1017;
    }
    if (tag == 0x1d)
    {
      while ((c = fgetc(ifp)) && c != EOF)
#ifdef LIBRAW_LIBRARY_BUILD
      {
        if ((!custom_serial) && (!isdigit(c)))
        {
          if ((strbuflen(model) == 3) && (!strcmp(model, "D50")))
          {
            custom_serial = 34;
          }
          else
          {
            custom_serial = 96;
          }
        }
#endif
        serial = serial * 10 + (isdigit(c) ? c - '0' : c % 10);
#ifdef LIBRAW_LIBRARY_BUILD
      }
      if (!imgdata.shootinginfo.BodySerial[0])
        sprintf(imgdata.shootinginfo.BodySerial, "%d", serial);
#endif
    }
    if (tag == 0x29 && type == 1)
    { // Canon PowerShot G9
      c = wbi < 18 ? "012347800000005896"[wbi] - '0' : 0;
      fseek(ifp, 8 + c * 32, SEEK_CUR);
      FORC4 cam_mul[c ^ (c >> 1) ^ 1] = get4();
    }
#ifndef LIBRAW_LIBRARY_BUILD
    if (tag == 0x3d && type == 3 && len == 4)
      FORC4 cblack[c ^ c >> 1] = get2() >> (14 - tiff_bps);
#endif
    if (tag == 0x81 && type == 4)
    {
      data_offset = get4();
      fseek(ifp, data_offset + 41, SEEK_SET);
      raw_height = get2() * 2;
      raw_width = get2();
      filters = 0x61616161;
    }
    if ((tag == 0x81 && type == 7) || (tag == 0x100 && type == 7) || (tag == 0x280 && type == 1))
    {
      thumb_offset = ftell(ifp);
      thumb_length = len;
    }
    if (tag == 0x88 && type == 4 && (thumb_offset = get4()))
      thumb_offset += base;
    if (tag == 0x89 && type == 4)
      thumb_length = get4();
    if (tag == 0x8c || tag == 0x96)
      meta_offset = ftell(ifp);
    if (tag == 0x97)
    {
      for (i = 0; i < 4; i++)
        ver97 = ver97 * 10 + fgetc(ifp) - '0';
      switch (ver97)
      {
      case 100:
        fseek(ifp, 68, SEEK_CUR);
        FORC4 cam_mul[(c >> 1) | ((c & 1) << 1)] = get2();
        break;
      case 102:
        fseek(ifp, 6, SEEK_CUR);
        FORC4 cam_mul[c ^ (c >> 1)] = get2();
        break;
      case 103:
        fseek(ifp, 16, SEEK_CUR);
        FORC4 cam_mul[c] = get2();
      }
      if (ver97 >= 200)
      {
        if (ver97 != 205)
          fseek(ifp, 280, SEEK_CUR);
        fread(buf97, 324, 1, ifp);
      }
    }
    if ((tag == 0xa1) && (type == 7) && strncasecmp(make, "Samsung", 7))
    {
      order = 0x4949;
      fseek(ifp, 140, SEEK_CUR);
      FORC3 cam_mul[c] = get4();
    }
    if (tag == 0xa4 && type == 3)
    {
      fseek(ifp, wbi * 48, SEEK_CUR);
      FORC3 cam_mul[c] = get2();
    }

    if (tag == 0xa7)
    { // shutter count
      NikonKey = fgetc(ifp) ^ fgetc(ifp) ^ fgetc(ifp) ^ fgetc(ifp);
      if ((unsigned)(ver97 - 200) < 17)
      {
        ci = xlat[0][serial & 0xff];
        cj = xlat[1][NikonKey];
        ck = 0x60;
        for (i = 0; i < 324; i++)
          buf97[i] ^= (cj += ci * ck++);
        i = "66666>666;6A;:;55"[ver97 - 200] - '0';
        FORC4 cam_mul[c ^ (c >> 1) ^ (i & 1)] = sget2(buf97 + (i & -2) + c * 2);
      }
#ifdef LIBRAW_LIBRARY_BUILD
      if ((NikonLensDataVersion > 200) && lenNikonLensData)
      {
        if (custom_serial)
        {
          ci = xlat[0][custom_serial];
        }
        else
        {
          ci = xlat[0][serial & 0xff];
        }
        cj = xlat[1][NikonKey];
        ck = 0x60;
        for (i = 0; i < lenNikonLensData; i++)
          table_buf[i] ^= (cj += ci * ck++);
        processNikonLensData(table_buf, lenNikonLensData);
        lenNikonLensData = 0;
        free(table_buf);
      }
      if (ver97 == 601) // Coolpix A
      {
        imgdata.lens.makernotes.LensMount = LIBRAW_MOUNT_FixedLens;
        imgdata.lens.makernotes.CameraMount = LIBRAW_MOUNT_FixedLens;
      }
#endif
    }

    if (tag == 0xb001 && type == 3) // Sony ModelID
    {
      unique_id = get2();
    }
    if (tag == 0x200 && len == 3)
      shot_order = (get4(), get4());
    if (tag == 0x200 && len == 4) // Pentax black level
      FORC4 cblack[c ^ c >> 1] = get2();
    if (tag == 0x201 && len == 4) // Pentax As Shot WB
      FORC4 cam_mul[c ^ (c >> 1)] = get2();
    if (tag == 0x220 && type == 7)
      meta_offset = ftell(ifp);
    if (tag == 0x401 && type == 4 && len == 4)
      FORC4 cblack[c ^ c >> 1] = get4();
#ifdef LIBRAW_LIBRARY_BUILD
    // not corrected for file bitcount, to be patched in open_datastream
    if (tag == 0x03d && strstr(make, "NIKON") && len == 4)
    {
      FORC4 cblack[c ^ c >> 1] = get2();
      i = cblack[3];
      FORC3 if (i > cblack[c]) i = cblack[c];
      FORC4 cblack[c] -= i;
      black += i;
    }
#endif
    if (tag == 0xe01)
    { /* Nikon Capture Note */
#ifdef LIBRAW_LIBRARY_BUILD
      int loopc = 0;
#endif
      order = 0x4949;
      fseek(ifp, 22, SEEK_CUR);
      for (offset = 22; offset + 22 < len; offset += 22 + i)
      {
#ifdef LIBRAW_LIBRARY_BUILD
        if (loopc++ > 1024)
          throw LIBRAW_EXCEPTION_IO_CORRUPT;
#endif
        tag = get4();
        fseek(ifp, 14, SEEK_CUR);
        i = get4() - 4;
        if (tag == 0x76a43207)
          flip = get2();
        else
          fseek(ifp, i, SEEK_CUR);
      }
    }
    if (tag == 0xe80 && len == 256 && type == 7)
    {
      fseek(ifp, 48, SEEK_CUR);
      cam_mul[0] = get2() * 508 * 1.078 / 0x10000;
      cam_mul[2] = get2() * 382 * 1.173 / 0x10000;
    }
    if (tag == 0xf00 && type == 7)
    {
      if (len == 614)
        fseek(ifp, 176, SEEK_CUR);
      else if (len == 734 || len == 1502)
        fseek(ifp, 148, SEEK_CUR);
      else
        goto next;
      goto get2_256;
    }
    if (((tag == 0x1011 && len == 9) || tag == 0x20400200) && strcmp(software, "v757-71"))
      for (i = 0; i < 3; i++)
      {
#ifdef LIBRAW_LIBRARY_BUILD
        if (!imgdata.makernotes.olympus.ColorSpace)
        {
          FORC3 cmatrix[i][c] = ((short)get2()) / 256.0;
        }
        else
        {
          FORC3 imgdata.color.ccm[i][c] = ((short)get2()) / 256.0;
        }
#else
        FORC3 cmatrix[i][c] = ((short)get2()) / 256.0;
#endif
      }
    if ((tag == 0x1012 || tag == 0x20400600) && len == 4)
      FORC4 cblack[c ^ c >> 1] = get2();
    if (tag == 0x1017 || tag == 0x20400100)
      cam_mul[0] = get2() / 256.0;
    if (tag == 0x1018 || tag == 0x20400100)
      cam_mul[2] = get2() / 256.0;
    if (tag == 0x2011 && len == 2)
    {
    get2_256:
      order = 0x4d4d;
      cam_mul[0] = get2() / 256.0;
      cam_mul[2] = get2() / 256.0;
    }
    if ((tag | 0x70) == 0x2070 && (type == 4 || type == 13))
      fseek(ifp, get4() + base, SEEK_SET);
#ifdef LIBRAW_LIBRARY_BUILD
    // IB start
    if (tag == 0x2010)
    {
      INT64 _pos3 = ftell(ifp);
      parse_makernote(base, 0x2010);
      fseek(ifp, _pos3, SEEK_SET);
    }

    if (((tag == 0x2020) || (tag == 0x3000) || (tag == 0x2030) || (tag == 0x2031) || (tag == 0x2050)) &&
        ((type == 7) || (type == 13)) &&
        !strncasecmp(make, "Olympus", 7))
    {
      INT64 _pos3 = ftell(ifp);
      parse_makernote(base, tag);
      fseek(ifp, _pos3, SEEK_SET);
    }
// IB end
#endif
    if ((tag == 0x2020) && ((type == 7) || (type == 13)) && !strncmp(buf, "OLYMP", 5))
      parse_thumb_note(base, 257, 258);
    if (tag == 0x2040)
      parse_makernote(base, 0x2040);
    if (tag == 0xb028)
    {
      fseek(ifp, get4() + base, SEEK_SET);
      parse_thumb_note(base, 136, 137);
    }
    if (tag == 0x4001 && len > 500 && len < 100000)
    {
      i = len == 582 ? 50 : len == 653 ? 68 : len == 5120 ? 142 : 126;
      fseek(ifp, i, SEEK_CUR);
      FORC4 cam_mul[c ^ (c >> 1)] = get2();
      for (i += 18; i <= len; i += 10)
      {
        get2();
        FORC4 sraw_mul[c ^ (c >> 1)] = get2();
        if (sraw_mul[1] == 1170)
          break;
      }
    }
    if (!strncasecmp(make, "Samsung", 7))
    {
      if (tag == 0xa020) // get the full Samsung encryption key
        for (i = 0; i < 11; i++)
          SamsungKey[i] = get4();
      if (tag == 0xa021) // get and decode Samsung cam_mul array
        FORC4 cam_mul[c ^ (c >> 1)] = get4() - SamsungKey[c];
#ifdef LIBRAW_LIBRARY_BUILD
      if (tag == 0xa022)
      {
        FORC4 imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][c ^ (c >> 1)] = get4() - SamsungKey[c + 4];
        if (imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][0] < (imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][1] >> 1))
        {
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][1] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][1] >> 4;
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][3] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Auto][3] >> 4;
        }
      }

      if (tag == 0xa023)
      {
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][0] = get4() - SamsungKey[8];
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][1] = get4() - SamsungKey[9];
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][3] = get4() - SamsungKey[10];
        imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][2] = get4() - SamsungKey[0];
        if (imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][0] < (imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][1] >> 1))
        {
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][1] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][1] >> 4;
          imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][3] = imgdata.color.WB_Coeffs[LIBRAW_WBI_Ill_A][3] >> 4;
        }
      }
      if (tag == 0xa024)
      {
        FORC4 imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][c ^ (c >> 1)] = get4() - SamsungKey[c + 1];
        if (imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][0] < (imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][1] >> 1))
        {
          imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][1] = imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][1] >> 4;
          imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][3] = imgdata.color.WB_Coeffs[LIBRAW_WBI_D65][3] >> 4;
        }
      }
      /*
            if (tag == 0xa025) {
              i = get4();
              imgdata.color.linear_max[0] = imgdata.color.linear_max[1] = imgdata.color.linear_max[2] =
                  imgdata.color.linear_max[3] = i - SamsungKey[0]; printf ("Samsung 0xa025 %d\n", i); }
      */
      if (tag == 0xa030 && len == 9)
        for (i = 0; i < 3; i++)
          FORC3 imgdata.color.ccm[i][c] = (float)((short)((get4() + SamsungKey[i * 3 + c]))) / 256.0;
#endif
      if (tag == 0xa031 && len == 9) // get and decode Samsung color matrix
        for (i = 0; i < 3; i++)
          FORC3 cmatrix[i][c] = (float)((short)((get4() + SamsungKey[i * 3 + c]))) / 256.0;

      if (tag == 0xa028)
        FORC4 cblack[c ^ (c >> 1)] = get4() - SamsungKey[c];
    }
    else
    {
      // Somebody else use 0xa021 and 0xa028?
      if (tag == 0xa021)
        FORC4 cam_mul[c ^ (c >> 1)] = get4();
      if (tag == 0xa028)
        FORC4 cam_mul[c ^ (c >> 1)] -= get4();
    }
#ifdef LIBRAW_LIBRARY_BUILD
    if (tag == 0x4021 && (imgdata.makernotes.canon.multishot[0] = get4()) &&
        (imgdata.makernotes.canon.multishot[1] = get4()))
    {
      if (len >= 4)
      {
        imgdata.makernotes.canon.multishot[2] = get4();
        imgdata.makernotes.canon.multishot[3] = get4();
      }
      FORC4 cam_mul[c] = 1024;
    }
#else
    if (tag == 0x4021 && get4() && get4())
      FORC4 cam_mul[c] = 1024;
#endif
  next:
    fseek(ifp, save, SEEK_SET);
  }
quit:
  order = sorder;
}